High-power single-motor three-position operating mechanism

Abstract

The invention relates to the field of the switching equipment of a power system and particularly relates to a three-station operating mechanism of a high-power single motor, which comprises a motor, a gear transmission mechanism, a main gear, a bi-directional trough plate, an output gear set and a mechanism output shaft. The main gear is driven to rotate by the motor. The motor transmits the torque through the gear transmission mechanism. The main gear is provided with a shifting shaft and a plurality of circumferentially arranged locking shafts. A sliding groove is arranged between every two adjacent shifting pieces of the bi-directional trough plate. The bi-directional trough plate is driven to rotate after sliding into the sliding groove through the shifting shaft. Each shifting piece of the bi-directional trough plate is respectively locked by the locking shafts of the main gear. The mechanism output shaft is driven to rotate by the bi-directional trough plate. The bi-directional trough plate transmits the torque through the output gear set. The three-station operating mechanism of the high-power single motor is simple and reliable in structure, and can realize the output of a high power. The three-station operating mechanism of the high-power single motor can be applied to products with the voltage level thereof within 66-550 KV.

Description

technical field [0001] The invention relates to the field of power system switchgear, in particular to a high-power single-motor three-position operating mechanism. Background technique [0002] In the high-voltage and ultra-high-voltage GIS products, the isolation and grounding switch operations of the early production products all use independent mechanisms, that is, one switch is controlled by one mechanism. Later, according to the improvement of the internal structure of the switch, the designers used one mechanism to operate the isolation and grounding switches, so that the two switches are operated by one mechanism, which saves space and cost, which is called three-station. mechanism. The common three-station mechanism is to arrange two sets of mechanical transmission systems and two sets of electrical control devices in one mechanism, that is, two sets of operating motors and two sets of control electrical components, which have achieved good results after applicatio...

AI Technical Summary

Problems solved by technology

Looking at these mechanisms, although they can all realize the single-motor operation function, they generally have disadvantages such as high process performance, difficult processing, and complicated structural assembly.

In addition, due to structural problems, the single-motor three-position mechanism in the prior art has a small output torque, so it is generally only used in products with a voltage level of 66KV ~ 110KV

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